document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=133481>Question 133481</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 4.	Consider the following contingency table:\r<BR>\n" );
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document.write( "Under 20	21-30		31-40<BR>\n" );
document.write( "Male		    12		   12		   17\r<BR>\n" );
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document.write( "Female	      13		   16		  21\r<BR>\n" );
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document.write( "a.  If one person is selected at random, what is the probability that person is Female?   ______\r<BR>\n" );
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document.write( "b.	If one person is selected at random, what is the probability that person is either under 20 or over 30? _______\r<BR>\n" );
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document.write( "c.	If one person is selected at random, what is the probability that person is either male or in the age group 21-30?  _____\r<BR>\n" );
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document.write( "d.	If two people are selected at random, what is the probability they are both female?  ______<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #97660 by </B><A HREF=/tutors/aboutme.mpl?userid=oscargut><B>oscargut(2103)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=oscargut><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/cgi-bin/show-face.mpl?user=oscargut><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=97660\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Total  are 91 persons,  41 Male and 50 Female<BR>\n" );
document.write( "Under 20 are 25 persons, over 30 are 38 persons<BR>\n" );
document.write( "Male or in he group 21-30 are 41+16=57\r<BR>\n" );
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document.write( "a.  If one person is selected at random, what is the probability that person is Female?   _50/91_____\r<BR>\n" );
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document.write( "b.	If one person is selected at random, what is the probability that person is either under 20 or over 30? ___63/91____\r<BR>\n" );
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document.write( "c.	If one person is selected at random, what is the probability that person is either male or in the age group 21-30?  _57/91____\r<BR>\n" );
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document.write( "d.	If two people are selected at random, what is the probability they are both female?  ___(50/91)(50/91)=2500/8281___<BR>\n" );
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